Respuesta:
Hallamos x
[tex]\frac{3}{4} =\frac{12}{x} \\ \\ 3x=12 . 4\\ \\ 3x=48\\ \\ x=\frac{48}{3} \\ \\ x=16[/tex]
Hallamos y
[tex]\frac{4}{y}=\frac{16}{20} \\ \\ 4.20=16y\\ \\ 80=16y\\ \\ \frac{80}{16} =y\\ \\ 5=y[/tex]
Medida de HF:
[tex]12+x\\ \\ 12+16\\ \\ 28[/tex]
Medida de BD:
[tex]4+y\\ \\ 4+5\\ \\ 9[/tex]
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Respuesta:
Hallamos x
[tex]\frac{3}{4} =\frac{12}{x} \\ \\ 3x=12 . 4\\ \\ 3x=48\\ \\ x=\frac{48}{3} \\ \\ x=16[/tex]
Hallamos y
[tex]\frac{4}{y}=\frac{16}{20} \\ \\ 4.20=16y\\ \\ 80=16y\\ \\ \frac{80}{16} =y\\ \\ 5=y[/tex]
Medida de HF:
[tex]12+x\\ \\ 12+16\\ \\ 28[/tex]
Medida de BD:
[tex]4+y\\ \\ 4+5\\ \\ 9[/tex]